Press Release

Calgon Carbon Awarded Two Contracts For Sentinel® Systems

PITTSBURGH, PA  –  06/13/2011

Calgon Carbon Corporation (NYSE: CCC) announced today that it has been selected by the cities of Indianapolis, Indiana, and Fort Wayne, Indiana, to supply Sentinel® Ultraviolet (UV) Disinfection Systems at drinking water production plants serving their communities. Terms of the contracts were not disclosed.

Indianapolis will install 12 Sentinel 12″ Systems at its Fall Creek plant to increase protection against Cryptosporidium, Giardia, and other surface water pathogens. When installed in the winter of 2011, the Sentinel Systems will treat up to 44 million gallons of drinking water per day.

Separately, Fort Wayne will install three Chevron 48″ UV reactors at its Three Rivers water filtration plant as part of a retrofitting project. The new UV reactors — capable of treating up to 72 million gallons of water per day were selected because of their low capital and operating costs. Installation is scheduled for June 2012.

Both Sentinel Systems have undergone third-party validation in accordance with the U.S. Environmental Protection Agency’s UV Disinfection Guidance Manual. Both Systems feature UV intensity sensors to ensure accurate delivery of UV dose, an automatic quartz sleeve cleaning system, and a fully automated control system.

Commenting on the contracts, James A. Sullivan, vice president of Calgon Carbon, said, “We are pleased to have been selected to supply our Sentinel disinfection systems to the cities of Indianapolis and Fort Wayne. These awards are indicative of Calgon Carbon’s growing leadership position in the UV disinfection market.”

Calgon Carbon Corporation, headquartered in Pittsburgh, Pennsylvania, is a global leader in services and solutions for making water and air safer and cleaner.

For more information about Calgon Carbon’s leading activated carbon and ultraviolet technology solutions for municipalities and industries, visit dev.calgoncarbon.com.

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